Preparation method of integrated fiber post core for oral cavity

Abstract

The invention relates to a preparation method of an integrated fiber post core for an oral cavity. The preparation method comprises preparation of short quartz fibers, preparation of a light-cured resin matrix and preparation of a light-cured resin matrix and short quartz fiber suspension, and further comprises the following steps: 1) obtaining three-dimensional data; 2) designing a personalized integrated fiber post core in an emulated manner; 3) making a 3D-print emulated post core file; and 4) manufacturing the personalized integrated fiber post core. According to the method, the personalized integrated fiber post core with high degree of adaptation with a shape of a root canal can be quickly and accurately obtained, a resin adhesive layer is thin and uniform after adhesion, the adhesion area and micro leakage are effectively reduced, the long-term stability of repair is improved, and the requirements on oral cavity repair are better met. Compared with a CAD/CAM (computer-aided design/computer-aided manufacturing) method for manufacturing the integrated fiber post core, the method has the advantages that the precision is high, the adaptation degree is high, the loss of a milling cutter is avoided, raw materials are only mixed for later use during preparation, the corresponding consumption of the raw materials can be adjusted as required, a large number of raw materials are saved, and the oral repair cost of a patient is remarkably reduced.

Description

technical field [0001] The invention relates to a fiber post and core, in particular to a method for preparing an oral cavity integrated fiber post and core. Background technique [0002] Post-core crown restoration is a common method of crown restoration, which can preserve a large area of ​​​​defective teeth. Common post cores include metal casting post cores and finished fiber post cores. The elastic modulus of the metal post core is much higher than that of dentin, which can easily cause tooth root fracture, and the metal material is opaque, so it cannot meet the aesthetic requirements when restoring anterior teeth; most of the finished fiber posts are made of continuous, high-strength quartz fibers Bundles or glass fiber bundles are infiltrated in the composite resin matrix, and the fiber posts are prepared by tension-compression molding and surface micro-treatment. The elastic modulus is close to that of dentin, which can effectively reduce the occurrence of root frac...

AI Technical Summary

Problems solved by technology

At present, the defects of this integrated fiber post and core are mainly that milling will cause tool wear and reduce milling accuracy, and CAD / CAM belongs to subtractive manufacturing, which mills the resin body into a specific shape, and the utilization rate of raw materials is low. cost